X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fview%2Fruler.cpp;h=aec3de979cf5171062df6777e78a42aaf4c74b03;hp=ad7082e63bf35a62d7c785ebfe3395db0d58b5db;hb=819f4c25391a9c74d3d2f528d462142d5c4aad4d;hpb=a28a212c7a9a3470e300911fe8aa62833a62d26a

diff --git a/pv/view/ruler.cpp b/pv/view/ruler.cpp
index ad7082e6..aec3de97 100644
--- a/pv/view/ruler.cpp
+++ b/pv/view/ruler.cpp
@@ -30,18 +30,20 @@
 #include <math.h>
 #include <limits.h>
 
+#include <QApplication>
 #include <QMouseEvent>
 #include <QPainter>
 #include <QTextStream>
 
 #include <pv/widgets/popup.h>
 
-using namespace boost;
-using namespace std;
+using namespace Qt;
+using boost::shared_ptr;
 
 namespace pv {
 namespace view {
 
+const int Ruler::RulerHeight = 30;
 const int Ruler::MinorTickSubdivision = 4;
 const int Ruler::ScaleUnits[3] = {1, 2, 5};
 
@@ -73,7 +75,7 @@ QString Ruler::format_time(double t, unsigned int prefix,
 	unsigned int precision)
 {
 	const double multiplier = pow(10.0,
-		- prefix * 3 - FirstSIPrefixPower);
+		(int)- prefix * 3 - FirstSIPrefixPower);
 
 	QString s;
 	QTextStream ts(&s);
@@ -83,9 +85,13 @@ QString Ruler::format_time(double t, unsigned int prefix,
 	return s;
 }
 
+QSize Ruler::sizeHint() const
+{
+	return QSize(0, RulerHeight);
+}
+
 void Ruler::paintEvent(QPaintEvent*)
 {
-	using namespace Qt;
 
 	const double SpacingIncrement = 32.0f;
 	const double MinValueSpacing = 32.0f;
@@ -105,7 +111,7 @@ void Ruler::paintEvent(QPaintEvent*)
 		const double min_period = _view.scale() * min_width;
 
 		const int order = (int)floorf(log10f(min_period));
-		const double order_decimal = pow(10, order);
+		const double order_decimal = pow(10.0, order);
 
 		unsigned int unit = 0;